While there are many costumes from the Star Trek television series and motion pictures, the ones worn by actors portraying enlisted personnel and officers from the fictitious organization Starfleet are the ones most closely associated with Star Trek costuming. Design varied among the successive costume designers, although generally costumes and insignia were consistent within any one series or film. Costumes were re-designed to improve appearance when filmed and to improve the comfort for actors. Deliberately mixing styles of uniforms from the various series was occasionally used to enhance the sense of time travel or alternative universes.

The original uniform designs were the product of designer William Ware Theiss. The original series uniforms consisted of a colored top and dark pants, with significant variations between the designs used in the pilot episodes and the rest of the series.

The original concept of the Starfleet uniform as worn by its first commanding officer, Captain Christopher Pike were different from what eventually became the standard design. Men are in ribbed turtlenecks and women in cowl neck variations. Both had a grey jacket

The first uniforms, as seen in the unaired pilot "The Cage" (footage was re-used in a later episode, "The Menagerie") and again in the second pilot "Where No Man Has Gone Before", are somewhat different from the Starfleet uniform seen in the rest of the original series. The original concept used a heavy, ribbed turtle neck collar of the same color as the tunic for the men, with a cowl neck variation for the women, each in three colors: gold, beige, and light blue.

Officers in the first Star Trek pilot, "The Cage", wear a single gold sleeve stripe, with only the officer grades "lieutenant" and "captain" used in dialog. A "chief" is also visible wearing a different sleeve stripe. Characters addressed as "crewman" wear no sleeve insignia. In the first pilot, the uniforms also include grey coats with silver rank stripes on the sleeves, worn on away missions and identical for men and women, and an optional grey cap. In the second pilot episode, "Where No Man Has Gone Before", most officers again wear a single stripe; Captain James T. Kirk wears two stripes. Gary Mitchell is identified as a lieutenant commander.

The familiar gold, blue and red variations (red replacing beige because it looked too similar to the gold on screen, and the colors becoming brighter as NBC, which aired the show, also owned RCA and was trying to sell new color TV sets) with a black low collar began to be worn when Star Trek went into regular production. The department colors were slightly altered from the pilot versions: command and helm personnel wear the green/gold shirts, operations, engineering and security personnel wear red, and science and medical personnel wear blue, all with black collars and undershirts (TOS: "The Man Trap"). Certain operations and engineering personnel wore red jumpsuits with black undershirts. The frequent death of red-uniformed security officers led to the coining of the popular term "redshirt". The gold shirts were actually green but appeared gold under the lights used on the set. In later series, the gold color was "canonized" in dialog. However, some uniforms – the alternate tunics worn by Captain Kirk, and the command division dress uniforms – were made of a different material which, while the same color, showed up as green even under the lights.

The shirt color indicates crew members' branch. In both the pilot and regular episodes, command personnel wore green-yellow (which tended to look gold or yellow on film),[1][2] and science and medical personnel wore blue (lighter in the pilots), security and operations wore beige in the pilots and red in the regular episodes, each with a matching colored collar and undershirt in the pilots (both were black in the regular series) (TOS: "The Cage", "Where No Man Has Gone Before").

From its first episode The Man Trap, The Original Series had officers on the USS Enterprise wearing colored tunics with a black collar and insignia on the left breast, dark grey pants (which appeared black on camera)[3] for the men and dresses with a mini length with dark tights for women along with boots for both. Nichelle Nichols did not believe that the miniskirts were unusually short or revealing:

I was wearing them on the street. What's wrong with wearing them in the air? I wore 'em on airplanes. It was the era of the miniskirt. Everybody wore miniskirts.[4]

Insignia was worn on the left chest by all personnel. In all cases, it was gold with a black border, but the shape was different based on the ship or base the person was assigned to (TOS: "Court Martial", "The Doomsday Machine", et al.). In the case of the Enterprise, the insignia was a delta or arrowhead shape. A black symbol within the insignia (the same for most shapes) also indicated the wearer's branch: a star with an elongated top point indicated command, a circle crossed by an oval (as a ringed planet) science and medical, and an angular spiral (a galaxy shape) operations and engineering. In the second pilot, the science/medical and engineering/operations symbols were reversed ("Where No Man Has Gone Before"),[5] and there were other slight variations between the insignia as used in the pilots and in the regular series.

On certain occasions, the characters wear dress uniforms (TOS: "Journey to Babel", "Court Martial") that are made of a shinier fabric and are decorated with gold piping and colored badges that vary depending on rank. (TOS: "Court Martial"). Montgomery Scott's dress uniform includes a Scottish tartan. The command uniform's true chartreuse color is most easily identified from these fabrics which were less affected by the lighting.

The original shirt & skirt material itself was velour. Used in the first and second seasons, it shrank after it was dry-cleaned and tore easily, so it was replaced in the third season by a nylon fabric used in professional baseball uniforms.

The rank system of the Star Trek universe resembles that of the United States Navy and the British Royal Navy, as opposed to some other science fiction franchises that have used a rank system based more upon an army set of ranks. Rank is indicated by gold solid or dotted braids on the sleeves. In Star Trek: The Original Series and Star Trek: The Motion Picture, ranks are indicated by sleeve stripes; in later movies based on The Original Series, ranks are indicated by pins on a shoulder strap and the left sleeve. In later television series, ranks are indicated by varying numbers of pips or bars on the individuals' uniform collars. Costumes in The Original Series were designed by William Ware Theiss and indicate rank with sleeve stripes. Robert Fletcher continued this system when he designed the uniforms for Star Trek: The Motion Picture. There are fewer stripes than on US Navy uniforms because four stripes for a captain would have looked "too militaristic".[6]

A rank of fleet captain is mentioned in two episodes, but no insignia is shown. An August 3, 1978, memo describing the sleeve stripes for The Motion Picture does not mention the rank of lieutenant j.g., assigning its insignia to ensign, and identifies the rear admiral insignia as having one double-width stripe below one regular-width stripe.

In The Original Series, every member of Starfleet wears an assignment patch on the left breast, which varies from ship to ship.[7] Within this assignment patch is a symbol that represents the officer's department, with Operations, Science, and Command represented by a spiral, a circle, and a star, respectively. In The Motion Picture, the emblem used as the USS Enterprise's assignment patch in The Original Series is used as an emblem by all of Starfleet.[8] The reason for this has never been canonically established, although Gene Roddenberry's novelization of The Motion Picture states that it was in honor of the Enterprise, which was the only ship of its class to return from its five-year mission with ship and crew mostly intact. The 2009 film Star Trek, set in an alternate version of The Original Series, also uses the Enterprise emblem for the entirety of Starfleet. In The Motion Picture, the department is indicated by the background color of the circle on which the Starfleet arrowhead is set, white indicating Command, red for Engineering, orange for Science, pale gold for Operations, green for Medical, and gray for Security.[6]

Based on the success and increasing popularity of Star Trek in syndication, an animated version of the series was produced from 1973 to 1974. The uniforms depicted in this series matched the general parameters and appearance of those used in the live action series. The perception by fans of the command uniforms being yellow/gold instead of green, thanks to set lighting and other factors, resulted in the producers committing to a definitive gold-color for animation purposes. The command dress uniforms remained green to match the perceived colors represented by the live action series, though the uniform pants were grey as they were in the live action series.

The film has multiple uniform styles, including one-piece jumpsuits, matching shirt and pants, and tunics either with buttons or a sash around the waist. All uniform variants include shoes built into the pantlegs. Some uniforms have short sleeves, while others are long-sleeved, with either standing, v-neck, or turnover collars. Uniforms come in grey, white, grey and white, blue, brown, and beige.

On the Enterprise, the arrowhead still remains the symbol for all staff members, but the elongated pentagram replaces the science department's circle and oval crossover and the ops department's 6-sided spiral. With the uniform colours not representing departmental affiliation, division is indicated by a coloured circle set behind the arrowhead: red is for engineering, pale green for medical, orange for science, white for command, pale gold for operations and grey for security.

Most of the uniforms in the first movie also included a noticeable "perscan" medical monitoring device, mentioned in the Gene Roddenberry novelization of "The Motion Picture", which appears on the uniforms in the position where one would expect to see a belt buckle.

Rank is indicated by braids on long sleeves or on shoulder boards, identical to TOS. However, in a departure from the TV series, a new ensign rank is indicated, as a dotted braid around the sleeves and on the shoulder boards (as opposed to TOS, where there wasn't any ensign rank sign of any sort); a rank for non-commissioned officers is a hollow gold square, on the shoulder boards, not at the sleeves (again, the show didn't have a rank sign for NCO's); and a new rank for admirals is shown, in the shape of 3 solid braids side-by-side, followed by another solid braid, on its own, with an 8-pointed star on the shoulder boards.

In "The Making of Star Trek: The Motion Picture," Susan Sackett and Gene Roddenberry wrote that the uniforms were redesigned because the bright colors of the 1960s original, so vibrant on television, would distract viewer attention on the big screen. But the designs proved unpopular with their wearers, and when he took over as producer of the motion pictures, Harve Bennett ordered the uniforms redesigned because he did not want "an all-grey crew on an all-grey ship."[citation needed]

Fletcher redesigned the costumes for Star Trek II: The Wrath of Khan. This design is used in the following movies, up to Star Trek Generations, and variations appear in some flashback scenes of Star Trek: The Next Generation and Star Trek: Voyager. In this costume, Starfleet officers wear rank insignia on the uniform shoulder strap and left sleeve just above the armband. A service bar is worn just below the sleeve rank pin, denoting how many years of service the officer has devoted to Starfleet in five-year and ten-year increments.

The second movie-era uniform consists of a burgundy single-breasted jacket with a black stripe along a sealing mechanism (admirals also had smaller gold stripes below, the number depending on rank), with a colored strip, used to close the tunic, over the right shoulder designating division, attached to which is a rank pin. A white, gold, grey, dark green, light green, dark blue, light blue or red colored turtle-neck under the jacket indicates division. All officer uniforms have a division colored stripe on the outside of the legs on the trousers or skirt that matches the shoulder strap and service bar, except for command branch, whose leg stripes are red and not white. This costume was nicknamed the "Monster Maroons."

An alternate "bomber" jacket was worn by Kirk and Scott, as well as Admiral Morrow (Star Trek III: The Search for Spock, Star Trek IV: The Voyage Home, Star Trek V: The Final Frontier). In later years Scotty would often remove the jacket all together, simply wearing a black vest, with numerous pockets useful for an engineer, with his undershirt. Scotty's undershirt itself was inconsistent - wearing a white shirt (consistent with his rank of Captain) with the vest or bomber, but a gold one (used by Engineering crew) with his formal duty tunic.

All uniforms include the arrowhead insignia from TOS, now adopted as the Starfleet emblem, on the left chest. Characters also wear a black belt with a buckle shaped like the Starfleet arrowhead. In these films, insignia representing departments are not worn; it is instead indicated by the color of the shoulder strap, arm band, and undershirt.[7] A Starfleet insignia is worn on the left breast. Flag officers also wore an arm band on their left sleeve just below the rank insignia that denoted their rank.

Security and engineering personnel wear armor and radiation suits, respectively, similar to those worn in The Motion Picture, although security guards wear a red, turtle-necked uniform underneath (Star Trek VI: The Undiscovered Country). The engineering radiation suits have a colored collar (Star Trek II): black indicates officer, red indicates cadet. There is also a field jacket for away missions with several large pockets, arm patches, white ribbing and a large white turnover collar. Starfleet cadets in The Wrath of Khan wear the same uniforms as officers, but with bright red undershirts and a red shoulder strap instead of one indicating department.

The Starfleet officers and crewmembers seen in The Next Generation wear a jumpsuit with a Starfleet communicator badge (or 'combadge' as it was sometimes called) on the left chest and rank insignia on the right side of the collar. The uniforms' sleeves and abdominal area are colored to indicate the individual's branch, with red indicating command and helm; gold for engineering, security, and operations; and blue for science and medical (TNG: "Encounter at Farpoint"). The division colors for command and operations switched from those used in Enterprise and TOS. In early episodes, some crew members can be seen wearing a tunic version of the uniform with bare legs and boots, a homage to the women's uniforms in TOS.

Beverly Crusher sometimes wears a blue labcoat above her standard uniform (TNG: "The Naked Now"). The blue tended to appear teal under certain lighting conditions in the later seasons and subsequent spinoffs. In some episodes of the later seasons, Jean-Luc Picard would sometimes wear a different uniform that consisted of a grey shirt with ribbed black shoulders and collar with a "bomber jacket" that was red overall with black ribbed shoulders, often worn open or very loosely fastened. The uniforms could be fitted with pouches for carrying tricorders and Type 2 phasers on the waist, and the early versions had a small pocket built in on the left side of the waist for carrying a smaller Type 1 phaser when appearing openly armed was not desired. The removable gear pouches were also incorporated into the uniforms used in DS9 and the TNG-era films from First Contact onward.

We hated our space suits. There were no pockets in them. As much as they call it a stretch fabric, spandex in that configuration doesn't give all that much. It hid nothing.

In the show's early seasons, the uniforms were one-piece jumpsuits made of Spandex, and sized slightly too small so that they would be stretched when worn and provide a smooth appearance. The cast disliked the uniforms' painfully tight fit and lack of pockets,[10] and after Patrick Stewart's chiropractor warned that they risked permanent injury, the actors persuaded the costumers to gradually replace them with wool uniforms.[11] The wool uniforms, which most main cast members wear from the third season onward, are two-piece (shirt and pants) designs that lack colored piping on the shoulders and edges of the pant leg cuffs and have a raised collar. The collar of the shirt has a colored edge of a width similar to that of the original diamond-shaped shoulder piping. The spandex uniforms continued to make appearances throughout TNG, usually worn by extras in various scenes. These were later altered to lack the piping on the shoulders and trouser hems and include a raised collar as a cost-cutting measure.

Admirals wore numerous different uniform variations in the early years of TNG - beginning in the sixth season, a final design was settled on, featuring an untucked jacket with gold piping along a centered enclosure on the front, and rank pips (indicating the number of "stars"), encased in a gold square, on both sides of the collar.

The TNG dress uniform, which continued to be used in Deep Space Nine and Voyager, is a colored wraparound robe-like coat of a solid division color, save for black shoulders. The edges of the robe-like coats are piped in silver for field officers and in gold for flag officers.

Other uniform designs appeared briefly in individual episodes - always following the theme of a coloured or differentiated shoulder yoke. Examples include cadet uniforms in several episodes (including "The First Duty"). Wesley Crusher's 'Acting Ensign' grey costume was never specifically identified as a uniform, but it also exhibited a shoulder yoke design.

Theiss, the costume designer from the original series, returned to design the initial TNG uniforms. The costumes adopted from season 3 onwards and later series' costumes were designed by Robert Blackman.

TNG, DS9, Voyager captain insignia

During all the shows set in the 24th century, a consistent insignia scheme is used for officers: a series of gold pips, either a solid color or an outline, worn on each officer's right collar. After the first season of Star Trek: The Next Generation, a consistent scheme is also used for admiral insignia: a series of gold circles inside a black rectangle with a gold border worn on both collars.[7]

For the first season of TNG, admirals wear a different insignia, consisting of a triangle or stripe resembling gold weave along the right collar; one or two gold pips are sometimes underneath the weave. Three variants are visible in "Conspiracy": Admiral Quinn's insignia has no pips, Admiral Savar's has one, and Admiral Aaron's has two.

Voyager provisional Captain insignia

Star Trek: Voyager introduces what The Star Trek Encyclopedia refers to as "provisional ranks" for the titular ship's Maquis crew. All ranks up to Captain appear on screen; The Star Trek Encyclopedia shows them all to be analogous to the normal rank system.[7]

A Starfleet insignia is worn on the left breast: this also functions as a communicator badge. This combadge insignia was redesigned for the movie Star Trek Generations (the only surviving part of a planned redesign of the uniforms), replacing the oval with a trapezoid with a cutout oval in the center.[12] This new combadge is also used in Star Trek: Deep Space Nine from season three, and in Star Trek: Voyager.

Cadet ranks are rarely ever seen, with the exception of the various visits from Wesley Crusher to the Enterprise in TNG. As it appears in those instances, it can be surmised that the insignia of a Cadet consists of 1, 2, 3, or 4 copper and black bars, similar to those of a modern Lieutenant in the United States Army. It can also be surmised that if a cadet has 1 bar, he has 1 year at the academy. 2 for 2 years, and so on.

Deep Space Nine introduced a new style of uniform that appeared to run in parallel to the one seen on TNG, however, a similar uniform as that appearing in the DS9 series can be seen in the TNG Season 3 episode "Allegiance" by the alien race masquerading as a Starfleet cadet. The new uniform comprised a single-piece open-necked jumpsuit with the colored and black areas reversed (black torso and colored shoulders). A grey mock turtleneck shirt was added, to which rank pips are affixed. The character of Major Kira wore an orange jumpsuit over a white undershirt/blouse with Bajoran symbols that indicated her rank. This was because she was not a member of Starfleet but rather the Bajoran liaison to Deep Space 9. She retained this uniform until she took command of the station at the end of the series, when she switched to the grey over-all uniform. Security Chief Odo also 'wore' a brown Bajoran security uniform, as he was also not a member of Starfleet.

Throughout the run of DS9, ship-based Starfleet personnel continue to wear the old TNG uniform design. The new design may therefore have been intended as an alternate 'class' of uniform for the different environment of the space station, as in a scene in "The Maquis, Part I" Commander Sisko can be seen wearing the new style uniform while Commander Hudson can be seen wearing the old style. Sisko also wore the TNG uniform on certain formal occasions and during his first arrival at DS9 from the series pilot episode, Emissary. He would revert to this uniform again when he was temporarily given the duties of "Head of Security" for Starfleet Headquarters. Admirals also retained the TNG style.

Following the release of Star Trek: First Contact, the new grey movie uniform design also appeared in DS9's fifth season and for the remainder of the series.

New uniforms were designed and made for the movie Star Trek Generations, but were abandoned at the last minute. These included a fastening on the right side of the chest and a slightly more militaristic approach with rank bandings on the sleeves. The costumes for the female crew-members were different - instead of the additional fastening, there was a higher than previously seen black band around the waist. Nonetheless, Playmates launched a number of action figures, wearing these planned uniforms. Generations instead has the crew wearing both TNG and DS9/VOY uniforms, sometimes in the same scene (for instance, Worf and Riker in the battle against the Duras Sisters' Bird of Prey or Data and Geordi scanning the Amargosa Observatory for trilithium).[13]

As the movie progresses, some characters change from old to new uniform designs but also back again (such as Captain Picard in the film's final scene). This would act as an introduction of the new design as standard shipboard wear for Star Trek: Voyager.

The new style combadge (with the gold oval background of the TNG combage that appeared in TNG and early DS9 was replaced by a rectangular gold background with a cutout in the center) was also introduced for all uniform types, and subsequently adopted for DS9 at the beginning of its third season and it was also used in Star Trek: Voyager.

The crew in Star Trek: Voyager use the same uniforms seen in the early episodes of Deep Space Nine throughout the show's run. Stuck in the Delta Quadrant and out of contact with Starfleet, unlike the TNG crew and the DS9 crew, the Voyager crew never makes the switch to the updated uniform seen in later DS9 episodes and the rest of the TNG films, although in the episode ""Message in a bottle"" in season 4 of the series the EMH mark II is wearing the updated "DS9"/movie grey TNG uniform. Starfleet personnel back in the Alpha Quadrant are seen wearing this uniform in later seasons of the show as well, when Voyager manages to reestablish contact with home. The crew also wears the TNG-style dress uniforms (VOY: "Course: Oblivion", "Someone to Watch Over Me", "One Small Step", "Ashes to Ashes").[14]

B'Elanna Torres is sometimes seen wearing an overcoat over her normal uniform which matches the colors of her normal uniform, but has a pocket on the right breast for carrying small tools. The jacket was used in an attempt to hide actress Roxann Dawson's pregnancy. She wore it again when her character became pregnant, beginning in the episode "Q2".

Voyager also uses the new-style combadge, and introduces a new 'provisional' rank insignia which consisted of a solid strip with varying markings to signify rank instead of the traditional pips, and were worn by the Maquis members of Voyager's crew, since they were ineligible to wear official Starfleet ranks.

Star Trek: First Contact introduces a new uniform style later adopted in DS9 (DS9: "Rapture"). This uniform features a colored turtleneck undertunic (with the same departmental color scheme as in earlier shows) covered by a black jacket with colored bands on the lower sleeves near the cuffs showing the wearer's division, the shoulders and upper chest of which are ribbed and made of thick, blue-grey material. The communicator badge is worn on the jacket, while rank pins are worn on the undertunic's collar. The pants are black. Star Trek: Insurrection also introduced a new dress uniform, consisting of a white jacket and black pants both with gold trim, a grey ribbed tunic (white tunic for flag officers and captains), and rank insignia on the collar of the tunic with the combadge worn in the customary location on the jacket. Unlike the previous uniform, it was the same color regardless of the wearer's division, save for colored bands on the lower sleeves like the standard uniform. It also appeared in the DS9 episode "Inter Arma Enim Silent Leges". Captains also had the option of a more casual uniform vest of the same basic design, though the blue-grey yoke extended much lower.

In the TNG episode "All Good Things...", an alternate timeline showed a uniform with the full color shirt (including shoulders). The same colors were used and the rank insignia would be shown above the right breast over a black line which cut off the shoulder area. These uniforms would also make an appearance in the Star Trek: Deep Space Nine episode "The Visitor" and the Star Trek: Voyager episode "Endgame". These episodes also included a new combadge design where the starfleet arrow was just an outline. This badge was also worn by Geordi La Forge in the Star Trek: Voyager episode "Timeless" but on the grey shoulder uniform used in the TNG movies and later DS9.[15]

Variations in uniforms and insignia are occasionally used as plot devices in the various series. In the episode Future Imperfect, the insignia are slightly altered so as to convince a character that 16 years have passed. In the episode, "Parallels", variations in uniforms and insignia suggest a meeting of characters from different parallel universes.

In Enterprise, field officers and crewmembers wear duty uniforms consisting of a dark long-sleeved undershirt and blue jumpsuit with colored piping around the shoulders and, often, baseball caps. There is also a desert uniform with khaki pants and white shirt. Both uniforms have a United Earth Starfleet patch (featuring the stylized arrowhead emblem) on the right upper arm, and a patch left upper arm denoting the ship one is serving on. Enterprise, set before all other incarnations, did not include characters who hold the ranks of lieutenant commander or lieutenant, junior grade. The highest-ranking admiral seen wears two sets of three-pip insignia.

Division colors follow the TOS scheme, with command and flight control officers wearing gold piping, engineering and security officers wearing red piping, and science, medical and communication officers wearing blue piping. Throughout the series, men and women wear the same type of uniform. Unlike the other series' uniforms, standard uniforms on Enterprise include zip-up pockets, and the undershirt is buttoned at the neck - while Gene Roddenberry had explicitly forbidden such devices as buttons and zippers on Starfleet uniforms, believing they would be obsolete in the future, designer Bob Blackman consciously used them as a way of dating the series, implying that closures Roddenberry envisioned had not been invented yet. Blackman described the jumpsuits as "more like a NASA flight suit" than the previous Starfleet costumes,[16] and actors from other Star Trek shows envied the Enterprise actors' much more comfortable and conventional outfits.[17][18]

On certain occasions, Enterprise characters wear dress uniforms similar to the blue jumpsuit, decorated with the same pattern of colored piping, but lacking the zip-up pockets and combined with a white long-sleeved undershirt and, sometimes depending on rank, a white tie.

Rank insignia on duty uniforms are worn on right side of shoulders only, but rank insignia on dress uniforms are worn on both sides.

Also, there are two different kinds of field jackets worn on away missions. They have zippered pockets and the same colored pipings as the jumpsuits, as well as cold weather gear, pressure suits, spacesuits, an EV undersuit, and a royal blue undergarment with slight differences on male and female garments.

During the series, T'Pol is almost never seen wearing the standard uniform although she is a commissioned officer in Starfleet, and often considered to be the first officer. The only times she wears the uniform is in the episode "Twilight" (featuring an alternate timeline) and briefly (as a disguise) in "Hatchery".

The 2009 Star Trek film features uniforms reminiscent of the original television series but with some cosmetic changes. The badge (already the logo of the full Starfleet instead of specific to the Enterprise), which represents the department divisions; engineering, life sciences, and communications is now a pin rather than sewn on, and is also silver instead of gold. The tops are now in two layers: a wide-collared colored over-shirt (gold, blue, or red just as in TOS) with a quilted pattern and a colored hem-line from the neck to the armpit, and a black undershirt, visually imitating the black collar of the TOS design. The over-shirt has the division delta badge shape printed onto the fabric providing a textured appearance. As in the original series, female officers wear skirts, some with short sleeves (seen on Lt. Uhura), others with long sleeves (as seen on some of the background extras). Many, if not all, female crew wear either black nail polish (worn by Uhura) or red nail polish, by other extras; something not seen in any other series by uniformed officers, nor explained. Also, a number of females onboard can be seen wearing the long sleeve top and pants uniform similar to those worn in "The Cage". Unlike other Trek, this uniform is worn only aboard starships - other personnel wear black one-piece uniforms of a much more "military" appearance, while dress uniforms are red, and admirals use a design similar to that in The Motion Picture, stated by designer Michael Kaplan in the book Star Trek: The Art of the Film to be a deliberate homage.

The Starfleet insignia as seen in the second through seventh Star Trek films

The uniforms in the second J. J. Abrams Star Trek film are developed further. The formal uniform for Starfleet officers on the ground is shown to be a mid-grey in colour and a similar style to the red uniforms worn by the Academy cadets in the first film. A more informal uniform jumpsuit is worn at various points by Kirk and Scotty (and other characters), with a high collar and made of a dark grey fabric, with triangles of transparent plastic at the collarbones which show the colour of the officer's regular uniform shirt beneath. The personnel on the USS Vengeance wear a different uniform to the norm, consisting of black trousers and undershirt, with either a blue chest section on the shirt itself or a blue waistcoat-like garment worn over the shirt.

Some licensed Star Trek publications present some insignia that contradict the ones shown on screen or in other publications. For example, the second and third editions of The Star Trek Encyclopedia offer differing insignia for various Starfleet ranks.[19] Additionally, some Star Trek publications, including officially licensed ones, posit additional ranks that are not seen or mentioned in live-action productions.